Problems

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
0-1 Sequences	12939	2071	16%	0.00	2699	1446	54%	5.5
10 Kinds of People	28614	5812	20%	0.01	4978	3540	71%	5.2
2048	11632	5276	45%	0.00	5128	4357	85%	2.5
2, 4, 6, Greaaat	1052	166	16%	0.15	124	54	44%	8.4
3D Printed Statues	15808	7274	46%	0.00	6864	6131	89%	2.1
3D Printer	1083	173	16%	0.00	468	132	28%	8.9
3-Sided Dice	2995	244	8%	0.00	500	172	34%	8.7
4 thought	13580	4695	35%	0.00	4477	3777	84%	2.9
A1 Paper	7209	2222	31%	0.00	2208	1768	80%	3.4
Aa	204	134	66%	0.01	61	38	62%	6.0 - 8.3
Aaah!	38972	18269	47%	0.00	16527	15409	93%	1.7
Abandoned Animal	2783	623	22%	0.03	716	521	73%	5.6
ABC	22214	10084	45%	0.00	9617	8720	91%	1.7
Ab Initio	2347	380	16%	0.08	329	207	63%	7.5
Above Average	14727	6112	42%	0.00	5900	5293	90%	2.1
A+B Problem	10555	1017	10%	0.03	1482	485	33%	8.5
A Brief Gerrymander	577	115	20%	0.11	107	53	50%	8.8
Abstract Art	473	156	33%	0.00	133	96	72%	7.1
Abstract Painting	1256	485	39%	0.00	437	348	80%	4.4
Absurdistan Roads II	720	241	33%	0.00	245	161	66%	6.9
Absurdistan Roads III	1901	544	29%	0.02	508	386	76%	5.7
Access Denied	529	119	22%	0.01	107	99	93%	3.3
Access Points	550	185	34%	0.01	178	137	77%	5.9
Accounting	2904	834	29%	0.01	689	500	73%	3.9
A Classy Problem	13611	3595	26%	0.01	3141	2462	78%	3.9
ACM Contest Scoring	9158	5684	62%	0.00	5085	4808	95%	1.5
Add 'Em Up!	2990	695	23%	0.01	733	514	70%	5.3
Adding Words	15942	3975	25%	0.00	3672	2895	79%	3.3
Add Two Numbers	7678	4898	64%	0.00	4516	4322	96%	1.4
A Different List Game	7733	546	7%	0.00	1032	197	19%	9.3
A Different Problem	43952	16231	37%	0.00	14873	12876	87%	2.4
Adjoin the Networks	2858	724	25%	0.00	629	499	79%	5.9
Administrative Difficulties	1939	421	22%	0.02	400	277	69%	6.1
Ads	997	134	13%	0.00	202	91	45%	4.9
Advanced Causal Measurements	129	41	32%	0.10	42	32	76%	7.5
Adventure Begins	374	119	32%	0.06	116	88	76%	6.8
Adventures in Moving -- Part IV	1851	408	22%	0.00	357	290	81%	5.1
A Favourable Ending	2245	597	27%	0.00	560	431	77%	4.7
A Feast For Cats	3927	1461	37%	0.00	1078	931	86%	3.3
A Flea on a Chessboard	1049	219	21%	0.01	218	154	71%	5.4
A Horse Shoe-In	186	15	8%	0.27	24	10	42%	9.2
AI Jeopardy	621	81	13%	0.02	82	53	65%	6.8
Air Conditioned Minions	8003	2373	30%	0.00	2361	1837	78%	3.5
Airline Hub	2450	539	22%	0.01	485	288	59%	6.8
Airport Coffee	1441	286	20%	0.04	271	186	69%	7.1
Airport Construction	3857	481	12%	0.02	426	225	53%	7.9
Airport Logistics	72	20	28%	0.00	26	19	73%	7.5
Airports	698	217	31%	0.11	189	141	75%	5.5
Air Rally	90	0	0%	--	14	0	0%	8.9
Akcija	12367	5454	44%	0.00	4653	4157	89%	2.1
Aladin	885	104	12%	0.10	146	33	23%	8.9
Alchemy	176	34	19%	0.02	46	24	52%	9.1
Alchemy 101	892	277	31%	0.05	216	175	81%	3.9
Alea iacta est	45	16	36%	0.19	20	15	75%	6.6
Alehouse	1165	445	38%	0.02	421	304	72%	5.2
Alex and Barb	1440	522	36%	0.00	598	474	79%	3.2
Alice in the Digital World	6391	1667	26%	0.01	1513	1205	80%	3.8
Alien Codebreaking	332	33	10%	0.59	61	18	30%	8.0
Alien Integers	1015	209	21%	0.00	289	202	70%	5.6
Alien Microwave	267	104	39%	0.00	139	99	71%	7.0
Alien Numbers	3157	1698	54%	0.00	1664	1530	92%	1.8
A List Game	11981	3612	30%	0.00	3475	2956	85%	2.6
All about that base	3492	1394	40%	0.00	1347	1145	85%	2.9
All Different Directions	1826	870	48%	0.00	828	746	90%	2.4
Allergy Test	669	174	26%	0.00	219	111	51%	8.0
All Friends	1205	226	19%	0.00	216	115	53%	8.7
All in the Family	189	40	21%	0.00	59	38	64%	6.0
All is Well	154	39	25%	0.03	38	32	84%	5.9
All Just A Dream	3120	871	28%	0.05	608	471	77%	5.1
All Kill	126	103	82%	0.00	58	51	88%	3.6
Alloys	1012	359	35%	0.00	374	311	83%	3.8
All Pairs Shortest Path	14594	2803	19%	0.00	1794	1293	72%	5.5
Almost Perfect	14426	3283	23%	0.00	3299	2632	80%	3.2
Almost Union-Find	10745	1885	18%	0.02	1697	1045	62%	6.0
Alphabet	2970	1518	51%	0.00	1459	1236	85%	3.0
Alphabet Animals	10441	1808	17%	0.00	1517	1053	69%	6.4
Alphabet Spam	11875	7426	63%	0.00	6314	6071	96%	1.4
Alternating Current	716	697	97%	0.00	125	121	97%	1.4 - 8.3
Alternative Anagram	273	86	32%	0.00	79	56	71%	7.4
Alternative Bracket Notation	240	104	43%	0.00	112	92	82%	5.4
Alto Singing	96	42	44%	0.00	43	40	93%	4.4
Altruistic Amphibians	574	159	28%	0.22	134	100	75%	5.1
Amalgamated Artichokes	5427	2444	45%	0.01	2158	1910	89%	2.6
Amanda Lounges	2053	605	29%	0.03	521	422	81%	5.6
A Mazing!	4100	1061	26%	0.09	422	313	74%	5.6
Amazing Adventures	542	149	27%	0.02	173	121	70%	6.7
Amazing Race	742	184	25%	0.29	161	124	77%	5.6
Ambiguous Result	301	70	23%	0.02	102	65	64%	7.1
Amsterdam Distance	2457	1238	50%	0.00	1254	1080	86%	2.6
A Multiplication Game	1452	610	42%	0.00	651	512	79%	3.9
Anagram Counting	5006	2004	40%	0.00	1948	1637	84%	3.1
AND Permutation	100	19	19%	0.22	28	14	50%	7.6
Andrew the Ant	573	179	31%	0.01	179	138	77%	5.1
A New Adventure	1558	237	15%	0.00	233	167	72%	6.2
A New Alphabet	14973	6837	46%	0.00	6369	5872	92%	1.7
An I for an Eye	1439	433	30%	0.00	501	375	75%	4.7
Animal Classification	1737	403	23%	0.03	346	230	66%	7.0
An Industrial Spy	2574	1363	53%	0.02	1097	964	88%	2.9
Annoyed Coworkers	1493	438	29%	0.02	292	254	87%	3.4
Another Brick in the Wall	4808	2440	51%	0.00	2384	2168	91%	2.0